Ok so i think jimmy could probobly put this together but how about a donation system1
How this works:There will be a npc at home... You trade it and it shows you what you can buy...
There will be a credit system with it also... You donate $15.00 and u get 15 credits..
When you log on ingame.. You will receive a box.. Click on it and it will say something like "You have 15 credits, Come home and talk to
NPC NAME to spend them!"
It works like that

Spend the 15 credits on what you want... And you get it instantly!